I'm so sorry for your loss
I do believe there can be little signs from 'beyond'. I'm not sure I even know what 'beyond' is, but there is something, I think. For me, the big one was that my mum had so much wanted grandchildren, it was probably her greatest wish, but died the year before we conceived.
There had been an item of very significant wedding jewellery that she had lost about 10 years before that, when we moved house - we all assumed it must have been lost in the move and either be lost in the old house, or else gone in the movers van or something.
A couple of weeks before DD was born, my dad got a 'funny feeling' (he's very into this stuff) and went to look in his sock drawer without really knowing why, and lo and behold, somewhere from behind the lining or something, this item appears. He had felt for some time that mum was watching us and was happy about the grandchild, and then this happened and it was like a gift from her for her first grandchild.
I'm sure in theory it could all be coincidence. But I think there's something more